会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Differential offset spacer
    • 差分补偿垫片
    • US07537988B2
    • 2009-05-26
    • US11870241
    • 2007-10-10
    • Shashank EkboteDeborah J. RileyBorna Obradovic
    • Shashank EkboteDeborah J. RileyBorna Obradovic
    • H01L21/8238H01L21/336
    • H01L27/1104G11C11/412H01L21/823864H01L27/11
    • A method of fabricating a CMOS integrated circuit includes the steps of providing a substrate having a semiconductor surface, forming a gate dielectric and a plurality of gate electrodes thereon in both NMOS and PMOS regions using the surface. A multi-layer offset spacer stack including a top layer and a compositionally different bottom layer is formed and the multi-layer spacer stack is etched to form offset spacers on sidewalls of the gate electrodes. The transistors designed to utilize a thinner offset spacer are covered with a first masking material, and transistors designed to utilize a thicker offset spacer are patterned and first implanted. At least a portion of the top layer is removed to leave the thinner offset spacers on sidewalls of the gate electrodes. The transistors designed to utilize the thicker offset spacer are covered with a second masking material, and the transistors designed to utilize the thinner offset spacer are patterned and second implanted. The fabrication of the integrated circuit is then completed.
    • 制造CMOS集成电路的方法包括以下步骤:使用该表面在NMOS和PMOS区域中提供具有半导体表面的衬底,在其上形成栅极电介质和多个栅电极。 形成包括顶层和组成不同底层的多层偏移间隔堆叠,并且蚀刻多层间隔堆叠以在栅电极的侧壁上形成偏置间隔物。 设计成利用较薄的偏移间隔物的晶体管被​​第一掩模材料覆盖,并且被设计成利用更厚的偏移间隔物的晶体管被​​图案化并且首先被注入。 去除顶层的至少一部分以在栅电极的侧壁上留下较薄的偏移间隔物。 设计成利用较厚的偏移间隔物的晶体管被​​第二掩模材料覆盖,并且设计成利用较薄的偏移间隔物的晶体管被​​图案化并且被第二次注入。 然后完成集成电路的制造。